Figure 1. Arsenic methylation in zebrafish tissues.
Adult zebrafish were exposed to sodium arsenite at 300 ppb or 5 ppm for 120 hours in static water. Different tissues were isolated for speciation assays using HPLC-ICP-MS. Each sample contains a pool of thirty tissues. Species analyzed in the assay include AsIII, AsV, MMAIII, MMAV, and DMAV. The upper plots represent 5 ppm and the lower plots represent 300 ppb AsIII treated samples.